Start a workflow to run pip-compile on demand

This should just run pip-compile, but won't do anything about the
changes

.github/workflows/pip-compile.yml

@@ -0,0 +1,30 @@
+name: Run pip-compile
+on:
+  workflow_dispatch: # allows you to manually trigger the workflow
+
+jobs:
+  pip-compile:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code Repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.8
+
+      - name: Install pip-tools
+        run: |
+          python -m pip install --upgrade pip
+          pip install pip-tools
+
+      - name: Run pip-compile
+        run: |
+          pip-compile requirements/requirements.in
+          pip-compile requirements/test-requirements.in
+          pip-compile requirements/dev-requirements.in
+
+      - name: List changes
+        run: git diff --exit-code